Folklore exists to the effect that Morecambe Bay is where music lovers go to bury banjos in the mud at low tide. However, evil Scientologists come later and harvest the instruments, purge them of their thetans then sell them to unsuspecting punters.
You may find while playing your banjo you have an irresistible urge to burst into Staying Alive, start pointing at the ceiling and donate your worldly goods to the Temple of L Ron Hubbard.
Beware Banjofield Earth...